This receptor binds insulin-like growth factor 1 (IGF1) with a high affinity and IGF2 with a lower affinity. It has a tyrosine-protein kinase activity, which is necessary for the activation of the IGF1-stimulated downstream signaling cascade. Plays a role in oocyte maturation. Promotes head development by inhibiting Wnt signaling during embryogenesis.
Cell membrane, Single-pass type I membrane protein
Protein kinase superfamily, Tyr protein kinase family, Insulin receptor subfamily